Ublast Vision Open Heart | Exposed Balance Wheel | Dress Watch

Ublast Vision Open Heart watch with green dial and exposed balance wheel automatic movement

The Ublast Vision Open Heart is a contemporary dress-oriented timepiece that blends classic styling with a partially exposed mechanical architecture. Positioned within the accessible segment of modern watchmaking, this model stands out for its open-heart display, offering a direct view of the balance wheel in motion.

Powered by an automatic mechanical movement, the watch emphasizes visual engagement rather than technical complexity. Its appeal lies in the balance between a clean, formal design and a subtle mechanical showcase. For enthusiasts seeking an entry-level mechanical watch with a more dynamic dial layout, this model presents a compelling proposition.

Design

The stainless steel case of this Ublast Vision Open Heart adopts a classic round profile with smooth, slightly curved lugs that contribute to a refined and versatile silhouette. Its proportions appear modern, likely around the 42 mm range, giving the watch a noticeable presence without becoming overly bulky. The finishing combines polished surfaces with subtle brushed accents, enhancing the overall perception of quality while maintaining a restrained aesthetic suitable for formal wear.

The bezel is slim and fixed, designed to maximize dial visibility. This choice reinforces the dress-oriented identity of the watch, allowing the dial to remain the visual focal point without unnecessary external elements.

The dial itself is the defining feature. Executed in a deep green tone with a gradient effect, it shifts from a darker outer edge to a brighter central area, creating depth and visual contrast. Applied baton indices and polished hands maintain a clean and modern layout, ensuring the watch remains legible despite the additional elements.

2 sub-dials introduce asymmetry: one appears to display a 24-hour or auxiliary time indication, while the other likely serves as a small seconds counter. At approximately 7 o’clock, the open-heart aperture reveals the oscillating balance wheel, adding a dynamic mechanical element to the composition. The sapphire crystal, flat with anti-reflective treatment, preserves clarity while protecting the dial.

The watch is paired with a black leather strap, which reinforces its dress watch positioning while maintaining versatility for everyday wear.

Case & Construction

The Ublast Vision Open Heart case is crafted from stainless steel, offering durability and resistance to daily wear and tear. With an estimated diameter of around 42 mm, it strikes a balance between contemporary sizing and traditional proportions. The integration of polished and brushed finishes provides subtle contrast without compromising the watch’s formal character.

A sapphire crystal protects the dial, ensuring scratch resistance and long-term clarity. The caseback, solid or partially transparent, contributes to structural integrity while potentially offering a secondary view of the movement.

The crown is positioned at 3 o’clock and appears proportionate, designed for easy adjustment without disrupting the clean case profile. Water resistance is expected to be modest, typically around 30-50 meters, indicating suitability for daily use but not for aquatic activities.

Movement

The Ublast Vision Open Heart is powered by an automatic mechanical movement, the Miyota Caliber 82S7, a well-established Japanese caliber widely used in accessible mechanical watchmaking. This movement operates through a self-winding rotor that converts wrist motion into stored energy, allowing the watch to run continuously without the need for daily manual winding, while still offering hand-winding capability when needed.

The Miyota 82S7 runs at a frequency of 21,600 vibrations per hour (3 Hz) and provides a power reserve of approximately 40 hours. It is equipped with 21 jewels and is known for its robust construction and consistent performance. Unlike higher-end calibers, it does not feature hacking seconds, but it compensates with proven reliability and ease of maintenance, making it a practical choice for everyday mechanical watches.

This caliber is specifically designed to support open-heart configurations, with the balance wheel positioned to be visible through the dial. This architectural feature aligns with the watch’s design focus, offering a direct view of the regulating organ in motion. The 82S7 is appreciated for its durability, accessibility, and widespread availability, making it a solid and coherent choice for a model that emphasizes mechanical visibility and everyday usability.

Functions & Complications

In addition to standard timekeeping functions, hours, minutes, and seconds, the Ublast Vision Open Heart integrates several additional features that enhance its functionality.

The most prominent is the open-heart complication, which exposes the balance wheel and allows the wearer to observe the regulating organ in motion. This feature adds visual interest and highlights the mechanical nature of the watch.

The dial also includes 2 sub-dials: one functions as a small seconds display, while the other appears to provide either a 24-hour time display or a secondary time display. These elements introduce additional utility while contributing to the watch’s layered and slightly technical aesthetic.

Performance

On the wrist, the Ublast Vision Open Heart offers a balanced presence thanks to its moderate case size and curved lugs. The leather strap enhances comfort, making it suitable for extended wear throughout the day. Its proportions allow it to transition easily between formal and casual contexts.

Legibility remains generally good despite the complex dial layout. The contrast between the polished indices and the green background ensures that the main time display remains readable. However, the open-heart aperture and sub-dials introduce visual density, which may slightly affect clarity at a glance.

In terms of durability, the sapphire crystal provides strong resistance to scratches, while the stainless steel case ensures everyday robustness. With limited water resistance, the watch is best suited for office environments and general daily use rather than sports or outdoor activities.


Technical Data

Brand: Ublast Watches;
Model: Ublast Vision Open Heart (Ref. UBVOH42BKGN);
Year: 2023-2024;

Case Material: Stainless Steel;
Case Diameter: ~42 mm;
Case Thickness: ~12-13 mm;
Lug Width: ~20 mm;

Crystal: Sapphire Crystal;
Water Resistance: ~30-50 m / ~100-165 ft (3-5 ATM);
Power Reserve: 40 hours;

Movement: Automatic Mechanical Watches – Miyota Caliber 82S7 (Japanese Movement);
Functions: Hours, Minutes, Seconds, Automatic Winding;
Complications: Open Heart Display, Small Seconds, 24-Hour Indicator;

Bracelet / Strap: Leather Strap;

Type: Classic Watches, Dress Watches, Limited Edition Watches, Open Heart Watches;
Sex: Men’s Watches;
Nationality: Italian Watches.

Retail Price (Launch): ~€220-€310 / ~$240-$335 (limited to 300 pieces).


The Ublast Vision Open Heart reflects a broader trend in contemporary watchmaking: making mechanical movements visually accessible to a wider audience. By exposing the balance wheel, the watch emphasizes the kinetic nature of traditional horology without requiring high-end complications or pricing.

Within the brand’s portfolio, this model serves as a stylistic bridge between classic dress watches and more expressive modern designs. It is particularly suited to buyers entering the mechanical watch segment, offering visual interest, recognizable complications, and a versatile aesthetic. Overall, it stands as a well-balanced piece that prioritizes design engagement and everyday usability over technical complexity.


You can explore current auctions and listings for this watch on Catawiki using the search link below.

Ublast Vision Open Heart on Catawiki

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